# Adaptive tests ICEF vs Picture Math

The clearest difference is in-app purchases: Adaptive tests ICEF at none against Picture Math's 2. Adaptive tests ICEF also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Picture Math sells 2 in-app purchases, starting at $4.99 per 7 days. Adaptive tests ICEF asks for nothing beyond the download.

Adaptive tests ICEF ships an update every 6 weeks, Picture Math every 3 weeks. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Adaptive tests ICEF | Picture Math |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 13 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yaroslav Lyulko](https://appshunter.io/developer/1708756062) | [Anthony Ho](https://appshunter.io/developer/894144862) |

## What reviewers say

### Adaptive tests ICEF

[App page](https://appshunter.io/ios/app/adaptive-tests-icef/id6450429824)

This educational app uses adaptive testing to assess your knowledge in Probability Theory and Statistics. It adjusts question difficulty based on your performance, offering a personalized learning experience.

**Highlights:** Adaptive testing, Probability Theory, Statistics, Personalized difficulty, Progressive learning

**Features:** macOS Compatibility

**In-app purchases:** none


### Picture Math

[App page](https://appshunter.io/ios/app/picture-math-calculus-solver/id6752255824)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is Adaptive tests ICEF free?

Adaptive tests ICEF is free to download, with no in-app purchases.

### Is Picture Math free?

Picture Math is free to download, with in-app purchases available.

### Do Adaptive tests ICEF or Picture Math have ads?

Neither Adaptive tests ICEF nor Picture Math shows ads.

### Which is updated more often, Adaptive tests ICEF or Picture Math?

Adaptive tests ICEF ships an update every 6 weeks, and Picture Math every 3 weeks. Most recently, Adaptive tests ICEF was updated on September 30, 2026 and Picture Math on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*